<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<input name="start_price" id="start_price" type="text" size="5" onkeyup="value=value.replace(/[^\d]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"/>
	</body>

</html>
